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256 mb pc133 cas2 vs 512mb pc133 at cas3.

H

hans007

Lifer
i just purchased 2 sticks of crucial 128mb pc133 -7E dimms. Currently i have a single stick of pc100 crucial -8e. How much difference can i actually expect by running it all at cas2 pc133. I have a ga-7zm motherboard, and well you cant manually set ram forced to run at cas2 pc133 on this. It only works if that is what is in its SPD. my pc100 256mb crucial is fine at 133cas2 on other boards, it even did 153 cas3. So basically if you were me, would you run 512mb of ram at pc133 cas3, or 256mb at pc133 cas2? Also does anyone know of any kt133A boards built for micro ATX? oddly i bought a micro ATX system to keep me from upgrading the motherboard, and well it works, there isn't anything to buy, if you wanna quit the upgrading habit, i suggest you do the same. Anyways I've been looking but i dont think any microatx boards have multiplier tweaks and well hopefully something can tempt me.
 
If I was you I would run 512MB at CAS3. CAS is only a delay when the system requests a new starting address in memory to read from. Once the data gets flowing the CAS has no effect until a new memory address is sent at which point the cycle starts from square one.

I would set it all to CAS3 and in Windows use a program that can setup the chipset registers to optimize the RAN. Keep in mind VIA always has poorer memory performance than Intel chipsets. However that does no mean you can improve the throughput. What kind of benchmarks does Sandra give you?


Do one test at CAS 2 and the other at CAS 3 and come back with your scores. Then I believe on www.viahardware.com there is an article for guys such as yourself who have a VIA chipset motherboard which focusses on optimizing the memory using wcprset from H.Oda.

 
The guy took it offline. (wcrpset) so private message me with your email and I'll email it to you. Then you will have to go either to www.madonion.com or www.viahardware.com and find the settings for VIA chipsets as I have never ever had a VIA chipset and I could only tell you the settings for the 440BX.
 
Unless your doing video editing or something that needs alot of RAM, you will actually be faster at the 256MB Cas2.
 
Depends on what you do and what OS you're running... I'd prefer 256MB @cas2 over 512MB @cas3 because 256MB is more than enough for what I do and because I use win98se. If you use win2K and photo/video editing programs go for 512MB though.
 
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